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Finding the Fourth Proportional to 5,005.48, 6,907.78 and 2,909.16

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Solution

The fourth proportional to 5,005.48, 6,907.78 and 2,909.16 is: 4,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.48 : 6,907.78 = 2,909.16 : x
  2. Step 2: Convert to fraction form
    5,005.48/6,907.78 = 2,909.16/x
  3. Step 3: Cross multiply
    5,005.48x = 6,907.78 × 2,909.16
  4. Step 4: Simplify right side
    5,005.48x = 20,095,837.26
  5. Step 5: Solve for x
    x = 20,095,837.26/5,005.48
  6. Step 6: Final answer
    x = 4,014.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.